Prescriptive method for insulating concrete forms in residential construction
Characterized as strong, durable, and energy-efficient, a new wall system for housing called Insulating Concrete Forms (ICFs) is emerging as an alternative to lumber wall frames. Due to rising costs and varying quality of framing lumber, home builders are increasing their use of ICFs even though added engineering costs make ICF homes slightly more expensive than homes with wood framing. To improve the affordability and acceptance of ICF homes, this report sets guidelines on the design, construction and inspection of ICF wall systems in residential construction. Based on thorough testing and research, the Prescriptive Method section of the report outlines minimum requirements for ICF systems including wall thickness, termite protection, reinforcement, lintel span, and connection requirements. It highlights construction and thermal guidelines for ICFs and explains how to apply the prescriptive requirements to one- and two-family homes. The Commentary section provides supplemental information and the engineering assumptions and methods used for the prescriptive method. Appendices contain step-by-step examples on how to apply ICF requirements when designing a home. They also contain engineering technical substantiation and metric conversion factors.
- Research Organization:
- NAHB National Research Center, Upper Marlboro, MD (United States); Department of Housing and Urban Development, Office of Policy Development and Research, Washington, DC (United States); Portland Cement Association, Skokie, IL (United States)
- OSTI ID:
- 289375
- Report Number(s):
- PB-99-107971/XAB; CNN: Contract HUD-H-21065CA; TRN: 83281370
- Resource Relation:
- Other Information: DN: See also PB98-102940.; PBD: May 1998
- Country of Publication:
- United States
- Language:
- English
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